lib/dtl/file_xml_database_importer.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * XML format importer class from file storage
  19  *
  20  * @package    core_dtl
  21  * @copyright  2008 Andrei Bautu
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 defined('MOODLE_INTERNAL') || die();
  26
  27 /**
  28  * XML format importer class from file storage.
  29  */
  30 class file_xml_database_importer extends xml_database_importer {
  31     /** @var string Path to the XML data file. */
  32     protected $filepath;
  33
  34     /**
  35      * Object constructor.
  36      *
  37      * @param string $filepath - path to the XML data file. Use 'php://input' for PHP
  38      * input stream.
  39      * @param moodle_database $mdb Connection to the target database
  40      * @see xml_database_importer::__construct()
  41      * @param boolean $check_schema - whether or not to check that XML database
  42      * @see xml_database_importer::__construct()
  43      */
  44     public function __construct($filepath, moodle_database $mdb, $check_schema=true) {
  45         $this->filepath = $filepath;
  46         parent::__construct($mdb, $check_schema);
  47     }
  48
  49     /**
  50      * Common import method: it opens the file storage, creates the parser, feeds
  51      * the XML parser with data, releases the parser and closes the file storage.
  52      * @return void
  53      */
  54     public function import_database() {
  55         $file = fopen($this->filepath, 'r');
  56         $parser = $this->get_parser();
  57         while ($data = fread($file, 65536)) {
  58             if (!xml_parse($parser, $data, feof($file))) {
  59                 throw new dbtransfer_exception('malformedxmlexception');
  60             }
  61         }
  62         xml_parser_free($parser);
  63         fclose($file);
  64     }
  65 }